All names: BD+33 854A, 1RXS J042437.7+335743, WD 0421+338, WDS J04246+3358AaAb, ** BAS 4AaAb, UBV M 10116, WDS J04246+3358A, GC 5335, BD+33 854, ADS 3188 A, Gaia DR3 172817599818083712, 2MASS J04243746+3357349, WEB 3945, HIP 20591, Gaia EDR3 172817599818083712, HR 1379, PPM 69394, * 56 Per, Gaia DR2 172817599818083712, TIC 429102184, WD 0421+336, SAO 57216, SKY# 6798, GSC 02380-02429, TYC 2380-2429-1, GEN# +1.00027786, GCRV 2553, TD1 3118, IRAS 04213+3350, UCAC4 620-015740, HIC 20591, AG+33 421, ** STT 81A, IDS 04181+3344 A, PLX 969.00, * 56 Per A, uvby98 100027786, PLX 969, CCDM J04246+3358A, HD 27786A, HD 27786
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|
| Right ascension | 04 24 37.52 (0.1) | 04 24 37.52 (0.08) | 04 24 37.46 (0.1) | 04 24 37.68 | ||
| Declination | 33 57 33.84 (0.06) | 33 57 33.89 (0.05) | 33 57 35.29 (0.06) | 33 57 39.60 | ||
| Spectral type | F4IV-V+DA | DA3.5 | ||||
| Effective temperature | [K] | |||||
| log(g) | [cgs] | |||||
| Mass | [M☉] | |||||
| log(Luminosity) | [L☉] | |||||
| Cooling age | [Gyr] | |||||
| log(H/He) | ||||||
| log(C/He) | ||||||
| log(Ca/He) | ||||||
| log(Ca/H) | ||||||
| Parallax | [mas] | 23.79 (0.1) | 23.51 (0.09) | 23.79 (0.1) | ||
| Distance | [pc] | 42.03 (0.2) | 42.54 (0.2) | 42.03 (0.2) | ||
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | 46.03404889 (0.2) | 43.818 (0.2) | 46.034 (0.1) | ||
| Proper motion (declination) | [mas/yr] | -90.46650145 (0.1) | -90.502 (0.1) | -90.467 (0.1) | ||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | yes | |||||
| B magnitude | 6.18 (0.01) | |||||
| V magnitude | 5.79 (0.01) | |||||
| R magnitude | 6.90 (0.4) | |||||
| I magnitude | ||||||
| J magnitude | 4.89 (0.04) | |||||
| H magnitude | 4.73 (0.02) | |||||
| K magnitude | 4.71 (0.02) | |||||
| u magnitude | ||||||
| g magnitude | ||||||
| r magnitude | ||||||
| i magnitude | ||||||
| z magnitude | ||||||
| G magnitude | 5.68 (0.001) | 5.66 | 5.68 (0.003) | |||
| BP magnitude | 5.89 (0.001) | 5.90 | ||||
| RP magnitude | 5.32 (0.002) | 5.34 | ||||
| Pan g magnitude | ||||||
| Pan r magnitude | ||||||
| Pan i magnitude | ||||||
| Pan z magnitude | ||||||
| Pan y magnitude | ||||||
| E(B-V) | 0.001 | |||||
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.